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authorjacqueline <me@jacqueline.id.au>2023-03-08 12:47:56 +1100
committerjacqueline <me@jacqueline.id.au>2023-03-08 12:47:56 +1100
commit0fce4fcc06a600aac6b0cb6fc1ef1ebb91bcdf27 (patch)
tree0a19839fc2b92551e25775c8264e010b601cd19b /src/drivers/display.cpp
parentd01f1bee1082840fdf50aa7ddd36dbcbff286d7e (diff)
downloadtangara-fw-0fce4fcc06a600aac6b0cb6fc1ef1ebb91bcdf27.tar.gz
update to faceplate bodge
Diffstat (limited to 'src/drivers/display.cpp')
-rw-r--r--src/drivers/display.cpp10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/drivers/display.cpp b/src/drivers/display.cpp
index 6ec82787..d3c2c923 100644
--- a/src/drivers/display.cpp
+++ b/src/drivers/display.cpp
@@ -60,7 +60,7 @@ auto Display::create(GpioExpander* expander,
const displays::InitialisationData& init_data)
-> std::unique_ptr<Display> {
// First, turn on the LED backlight.
- expander->set_pin(GpioExpander::DISPLAY_LED, 0);
+ expander->set_pin(GpioExpander::DISPLAY_LED, 1);
expander->set_pin(GpioExpander::DISPLAY_POWER_ENABLE, 1);
expander->Write();
@@ -118,6 +118,14 @@ Display::Display(GpioExpander* gpio, spi_device_handle_t handle)
Display::~Display() {}
void Display::SendInitialisationSequence(const uint8_t* data) {
+ // Reset the display manually to get it into a predictable state.
+ gpio_->set_pin(GpioExpander::DISPLAY_RESET, false);
+ gpio_->Write();
+ vTaskDelay(pdMS_TO_TICKS(10));
+ gpio_->set_pin(GpioExpander::DISPLAY_RESET, false);
+ gpio_->Write();
+ vTaskDelay(pdMS_TO_TICKS(10));
+
// Hold onto the bus for the entire sequence so that we're not interrupted
// part way through.
spi_device_acquire_bus(handle_, portMAX_DELAY);